43. introduced

44. that move at a speed greater than light， and therefore， might serve as our passports to the past

45. seems to have been a part of humanity for as long as human have existed

46. used a definition of time for experimental purposes， as that which is measured by a clock

15选10

47. N tend 48. L negative 49. H efficiently

50. B associated 51. A alert 52. D cling 53. F definitely

54. O younger 55. E continuing 56. G different

仔细阅读

57 D. Interracial lodging may have diverse outcomes

58 D. Being surrounded by white peers motivates a black student to work harder to succeed

59 A. Roommates of different races just don’t get along

60 D. The school randomly assigns roommates without regard to race

61 A. It is unscientific to make generalizations about it without further study

62 B. Rates of death from illnesses have risen due to global warming

63 A. It was challenged by some climate and risk experts

64 B. It is invalid in terms of methodology

65 D. Its rough estimates are meant to draw the attention of world leaders

66 D. How rich countries can better help poor regions reduce climate hazards

完型

C inside 68. C specific 69. A key 70. B different

B prevent 72. A in 73. C focus 74. over

C rather 76. B consumed 77. A vital 78. C amazed

B contain 80. B interact 81. C on 82. D up

B fill 84. C avoid 85. D doubt 86. C impact

翻译

也没有解释为什么neither did they account for the reason / neither did they explained why / the reason

能被分配做另一项工作would be delegated / allocated with/to another task.

冒着自己生命危险with his own life under risk

接电话的却是他的助手turned out that his assistant answered the phone

他的父亲说服他his father persuaded him into